document.write( "Question 843511: A rectangular courtyard of length 20m 16cm and breadth 15m 60cm is to be paved with same sized square tiles.Find the maximum possible numbers of such tiles? \n" ); document.write( "
Algebra.Com's Answer #508572 by KMST(5328)\"\" \"About 
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As long as we do not need to be realistic, there is no maximum number of tiles.
\n" ); document.write( "In math-land my tiles could measure 1 nanometer by 1 nanometer, and I would use a huge number of those tiles.
\n" ); document.write( "
\n" ); document.write( "There is a minimum number of tiles, corresponding to a maximum tile size, if I am not allowed to cut the tiles into pieces.
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\n" ); document.write( "To line up a whole number of tiles along the 2016 cm length of the courtyard, I need square tiles with a side length that will go evenly into 2016 cm.
\n" ); document.write( "To line up a whole number of tiles along the 1560 cm width of the courtyard, I need square tiles with a side length that will go evenly into 1560 cm.
\n" ); document.write( "The tile side length on cm needs to be a factor of 2016 and 1560.
\n" ); document.write( "The maximum tile size corresponds to the greatest common factor of 2016 and 1560.
\n" ); document.write( "\"2016=2%5E5%2A3%5E3%2A7\"
\n" ); document.write( "\"1560=2%5E3%2A3%2A5%2A13\"
\n" ); document.write( "The greatest common factor is
\n" ); document.write( "\"2%5E3%2A3=8%2A3=24\"
\n" ); document.write( "The maximum tile size is \"highlight%2824cm%29\" by \"highlight%2824cm%29\" .
\n" ); document.write( "We would line up
\n" ); document.write( "\"2016%2F24=2%5E5%2A3%5E3%2A7%2F%282%5E3%2A3%29=2%5E2%2A3%2A7=84\" tiles along the length of the courtyard and
\n" ); document.write( "\"1560%2F24=2%5E3%2A3%2A5%2A13%2F%282%5E3%2A3%29=5%2A13=65\" tiles along the width of the courtyard.
\n" ); document.write( "That mean that we would use \"84%2A65=2%5E2%2A3%2A5%2A7%2A13=20%2A39=5460\" tiles.
\n" ); document.write( "We can also calculate that the surface area of the 24-cm tiles is
\n" ); document.write( "\"%2824cm%29%2824cm%29=576cm%5E2\"
\n" ); document.write( "while the surface area of the courtyard is
\n" ); document.write( "\"%282016cm%29%281560cm%29=3144960cm%5E2\"
\n" ); document.write( "and that it would take
\n" ); document.write( "\"3144960cm%5E2%2F%28576cm%5E2%29=5460\" times the surface area of one tilew to cover the whole courtyard.
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